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To resolve this issue, your PIXMA MX492 should be reinstalled on your computer. If you would like assistance with reinstalling your PIXMA MX492, please reply to this post with the version of Windows (or OS X) that is installed on your computer.
You are correct. Uninstall, reboot your computer and then reinstall.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
2/07/2023: New product announcements!EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM